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He—jet带传输及X—γ(t)符合测量装置和(153)~Er(EC+β~+)衰变新γ的测定

A He-jet recoil tape-transport and X-γ(t) coincidence measurement system and new γ-rays from(EC+ β ̄+)decay of ̄(153)Er

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【作者】 徐树威王以好罗亦孝张学谦谢元祥祁文魁潘强岩张菊萍袁双贵徐联联胡志强郭光辉

【Author】 Xu Shuwei;Wang Yihao;Luo Yixiao;Zhang Xueqian;Xie Yuanxiang;Qi Wenkui;Pan Qiangyan;Zhang Juping;Yuan Shuanggui;Xu Lianlian; Hu Zhiqiang;Guo Guanghui(Institute of Modern Physics, Academia Academica, Lanzhou 730000)

【机构】 中国科学院近代物理研究所

【摘要】 介绍了He—jet带传输及X—Υ(t)符合测量装置分离鉴别重缺中于远离核的原理、速度和效率;离线测试了其最佳工作条件;利用该装置在线测量了195,196Bi、152,154Er和153Er的(EC+β+)衰变。6条新Υ射线被确定属于153Er。

【Abstract】 A He-jet recoil tape-transport and X-Υ(t)coincidence system for separating and identifying the heavy neutyon-deficient nuclei far from the stability is described including its fundamentals, speed and efficiency.Its optimal working condition has been tested off-line.The Υ-rays from 195,196Bi and 152,153,154Er(EC+β+)decay have been measured on-line by using the system. Six new Υ-rays have been assigned to 153Er.

【基金】 中国科学院八五重大项目资助
  • 【分类号】O571.323
  • 【被引频次】2
  • 【下载频次】27
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